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Good Yarn

Every Skein Tells a Story Worth Telling

At String Theory, our collection wasn't built by following trends at trade shows. It was built around a mission: that the money you spend on your craft should make the world measurably better. Founded after the healing power of knitting revealed itself, String Theory exists because good yarn connects people — and we take that literally.

A Curated Collection of Natural Fiber Yarns

You'll find natural fiber yarns in every weight and form — soft merino for sweaters and shawls, sturdy wool for socks and mittens, breathable cotton for warm-weather knitting and crochet, luxurious alpaca and silk blends for heirloom pieces. We also carry recycled fiber yarns for knitters and crocheters who want beautiful work with the lightest footprint.

Whether you're casting on your first project or your fiftieth, every yarn in our collection has been chosen because it performs beautifully and because it's connected to something real.

Artisan Yarns with Actual Impact

When you buy from String Theory, the story doesn't stop at the skein. Our shelves carry hand-dyed yarn and small-batch yarn from makers whose work changes lives:

  • Handspun Hope cotton is handspun by single mothers in Ethiopia and organically dyed by women in Rwanda — a yarn that funds education for a new generation.
  • Manos del Uruguay has been employing women in rural Uruguayan cooperatives since 1968 — over fifty years of meaningful, fair-trade work.
  • Sister Ananse is a String Theory exclusive from local Chicago-area artist Naima Bond, whose fine arts background produces stunning, museum-worthy colorways.
  • Mitchell Wool Co. practices regenerative agriculture, helping restore the midwestern grasslands one fleece at a time.

These aren't marketing stories. They're the reason these yarns are on our shelves.

Yarn for Your Wellbeing — and the World's

Research shows that knitting and crochet are genuinely good for you — reducing stress, improving focus, and building community. We believe inner peace leads to world peace, and that the simplest way to pursue both is to pick up your needles. 

Find Your Next Favorite Yarn

Whether you're searching for the perfect hand-dyed yarn for a shawl, a fair trade wool for your next sweater, or a sustainably sourced yarn to add to your stash with a clear conscience — you're in the right place.

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  • baa ram ewe

    Natural Meadow

    $22.00

    Natural Meadow is a gently twisted British Suffolk wool yarn that is incredibly soft and lightweight and is perfect for knitting chunky garments an...

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  • baa ram ewe

    Eden DK

    $29.00

    Made with 30% naturally grown alpaca fibers and 70% certified organic British wool, this beautiful yarn is available in a range of soft shades insp...

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  • Kelbourne Woolens

    Mojave

    $15.00

    Kelbouurne's love of cellulose-based fibers led to the development of Mojave. A versatile sport-to DK-weight yarn consisting of five sets of very f...

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  • Wooldreamers

    90 Varas

    $18.00

    100% Transhumant Merino WoolFingering Weight225 m / 246 yards / 50 gramsHandwash - Dry Flat90 Varas is a yarn collection inspired by Spain’s centur...

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  • 29 Bridges

    Bloom Mini Skein Set

    $55.00

    Have you ever wanted to play with all the colors? These mini skeins of 29 Bridges Bloom let you do just that! Use them all together to make stripey...

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  • -

    Huasco

    Original Price $32.00
    Current Price $25.00

    Huasco Sock Prism is perfect for assigned pooling projects. Fingering Weight75% Wool, 25% Nylon433 yds / 100g skeinFiber care: Machine wash cold wa...

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  • -

    Noro Rikka

    Original Price $60.00
    Current Price $47.00

    The Noro Rikka is a voluminous yarn and a typical Noro blend of Merino wool & Corriedale, combined with the softest Peruvian alpaca, and undyed...

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  • -

    WYS Signature 4Ply

    $22.00

    EThe charming self-striping shades of Signature 4ply, a durable yet sumptuous blend of 75% wool, which includes 35% Bluefaced Leicester.  This yarn...

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  • -

    Cashmere Dreams

    $42.00

    This yarn is a match made in heaven, it is a dream made of cashmere and silk. Like a silk mohair, but with cashmere instead of mohair.65% cashmere/...

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  • -

    BFL Fleece

    $29.00

    Meet a DK yarn that shows wool at its very best. Spun from 100% Bluefaced Leicester, it’s soft, silky, and offered in natural undyed shades along w...

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  • -

    Lang Phoenix

    Original Price $32.00
    Current Price $25.00

    Phoenix is one BIG ball of merino fluff. It may be the softest yarns you have ever felt. Light, fluffy, and works up quickly.95% Wool/5% Nylon295 y...

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  • Ito

    Ito Shimo

    $20.00

    ITO Shimo is a woolen spun yarn that is produced on an old mule spinning system. Mule spun yarns are very high quality woolen yarns. This yarn is a...

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  • Ito

    Ito Sensai

    $20.00

    ITO Sensai is a delicate mohair yarn with 40% silk, luxurious and as light as a feather. Use it for lacework or for light, elegant knits.  Composit...

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